Insulator link

ABSTRACT

An insulator link formed of an insulator body made of three blocks, each block being formed by superimposed glass fiber cloth sheets compressed together longitudinally of the insulator body; the three blocks are integrated together so that two side blocks have the edges of the sheet therein against the opposite faces of the middle block, so that the sheets in the side blocks are in planes at right angles to the planes of the sheets in the middle block; the glass fiber cloth sheets of all the blocks are loaded with dielectric resins so that the blocks can be integrated into a single cylindrical body under heat and pressure; continuous glass fiber cloth is tightly wound around the periphery of the combined blocks and is also loaded with dielectric resins so that the tightly wound cloth is integrated with the insulator body formed by the blocks also under heat and pressure; the insulator link has an axial hole therethrough, and means are provided in the opposite ends of the hole to securely hold suitable link elements.

United States Patent [191 Koch [ Apr. 16, 1974 INSULATOR LINK [76] Inventor: William L. Koch, 2170 Jackson St.,

San Francisco, Calif. 94115 [22] Filed: Mar. 12, 1973 [21] Appl. No.: 339,753

[52'] U.S. Cl .7 174/208, 29/631, 156/154, 156/185, 156/192, 156/253, 161/69,

l61/DIG. 4, 174/178, 174/209 [51] Int. Cl. HOlb l7/60, HOlb 17/02 [58] Field of Search 174/138 D, 176, 177, 178, 174/207, 208, DIG. 4, 209; 29/631; 156/154,

DIG. 4, 69; 264/258 6/1912 Great Britain.....- 174/178 Primary ExaminerLaramie E. Askin Attorney, Agent, or Firm-George B. White [5 7] ABSTRACT An insulator link formed of an insulator body made of three blocks, each block being formed by superimposed glass fiber cloth sheets compressed together longitudinally of the insulator body; the three blocks are integrated together so that two side blocks have the edges of the sheet therein against the opposite faces of the middle block, so that the sheets in the side blocks are in planes at right angles to the planes of the sheets in the middle block; the glass fiber cloth sheets of all the blocks are loaded with dielectric resins so that the blocks can be integrated into a single cylindrical body under heat and pressure; continuous glass fiber cloth is tightly wound around the periphery of the combined blocks and is also loaded with dielectric resins so that the tightly wound cloth is integrated with the insulator body formed by the blocks also under heat and pressure; the insulator link has an axial hole therethrough, and means are provided in the opposite ends of the hole to securely hold suitable link elements.

4 Claims, 6 Drawing Figures M s -gt 5 Wilt/1 X l PATEMTEUAPR 16 IBM 3804373 mummw FIG. 2.

PATENTEUAPR'] s 1914 SHEET 2 BF 3 A. w 3 v PATENTEnAPRw 19m 3.843713 SHEE'E 3 [IF 3 INSULATOR LINK BACKGROUND OF THE INVENTION excessively bulky and large.

The primary object of this invention is to provide an insulator link out of several blocks of laminated glass fiber cloth sheets integrated together with glass fiber cloth of a plurality of layers wrapped around the integrated blocks and integrated with said blocks in such a manner that link elements can be easily secured in said block, whereby the strength of said insulator body is materially increased relatively to size.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating the form of the blocks.

FIG. 2 shows the blocks integrated together.

FIG. 3 illustrates the machining of the integrated blocks into a cylindrical form.

FIG. 4 illustrates the winding of glass fiber cloth around the integrated blocks.

FIG. 5 is a cross-sectional view of the insulator link.

FIG. 6 shows the insulator link interconnected in a hoisting line.

DETAILED DESCRIPTION In making the insulator link, pre-compounded glass fiber sheets are utilized to make individual blocks, and

a continuous roll of glass fiber cloth is utilized to be wound tightly around the integrated glass fiber cloth sheets.

There are three laminated blocks, 1, 2 and 3, formed by superimposed sheets all arranged longitudinally to the 'ultimate insulator body. Blocks 1 and 3 are the outer or side blocks and are positioned with the opposite edges 4 of the laminations against the respective opposite faces of the central block 2. Thus, while all the glass fiber cloth sheets are longitudinal, sheets in the side blocks 1 and 3 are in parallel planes. The sheets in the central block 2 are in planes at right angles to the planes of the sheets of the side blocks 1 and 3.

g The blocks 1, 2 and 3 are integrated together under heat and pressure.

The core 5 of the body is formed by shaping the integrated blocks ll, 2 and 3 into a substantially cylindrical exterior, for instance as shown in FIG. 3. Continuous glass fiber cloth 6, also pre-compounded, is tightly wound around the cylindrical core 5 as shown in FIG. 4 and then integrated under heat and pressure onto the core 5. All the pre-compounded glass fiber cloth sheets and the glass fiber cloth are loaded with dielectric resins so that they can be integrated and shaped together under heat and pressure.

An end 7 of reduced diameter of each end of the core extends from the adjacent shoulder 8 of the cylindrical body 5. A suitable socket 9 is provided axially in each end of the link body. Each socket 9 has a counter sunk portion 10 and is provided with internal threads 11.

A loop 12 with a threaded base 13 is screwed in the socket 9 at one end and a suitable link connector 14 with a threaded base 15 is screwed in the socket 9 at the other end of the link body so as to form the insulator body into an insulator link.

A set screw 16 through the side of the reduced end 7 is engagable with the base of the respective connectors to fix them in position.

I claim:

1. An insulator link comprising a body made of a central block and a side block on each side of the central block, each block being formed of laminations of glass fiber cloth sheets superimposed, I 1 said blocks being positioned so that the sheets in the side blocks are parallel and the sheets in the central blockare at right angles to the planes of the sheets in the side blocks, all the sheets being longitudinal with respect to the insulator body and extending the entire distance between the ends of the link, said blocks being integrated together into said body,

glass fiber cloth tightly wound around said body in a plurality of superimposed layers and integrated with the blocks of said body,

said body having an axial cavity in each said end thereof,

and means located in each cavity for securing a link connector element in each cavity. i 2. The insulator link specified in claim 1, and

said means for securing a link connector element in each cavity being internal threads in each cavity.

3. The insulator link specified in claim 1, and

said glass fiber cloth sheets being impregnated and integrated together with resin.

4. The insulator link specified in claim 1, and said body being cylindrical. 

1. An insulator link comprising a body made of a central block and a side block on each side of the central block, each block being formed of laminations of glass fiber cloth sheets superimposed, said blocks being positioned so that the sheets in the side blocks are parallel and the sheets in the central block are at right angles to the planes of the sheets in the side blocks, all the sheets being longitudinal with respect to the insulator body and extending the entire distance between the ends of the link, said blocks being integrated together into said body, glass fiber cloth tightly wound around said body in a plurality of superimposed layers and integrated with the blocks of said body, said body having an axial cavity in each said end thereof, and means located in each cavity for securing a link connector element in each cavity.
 2. The insulator link specified in claim 1, and said means for securing a link connector element in each cavity being internal threads in each cavity.
 3. The insulator link specified in claim 1, and said glass fiber cloth sheets being impregnated and integrated together with resin.
 4. The insulator link specified in claim 1, and said body being cylindrical. 